Royal Bank of Scotland and NatWest customers have vented their anger on Twitter after they were hit by yet another banking glitch.

Some customers were unable to withdraw cash or use their card in branches. The issue, believed to have lasted for half an hour, has since been resolved.

Emmachubbz tweeted RBS to say: “Not happy, cannot draw money for the second time this year. Hurry up, please sort the problem.”

Colinmccredie tweeted that he had tried to use his card at two cash machines in Glasgow but was denied both times.

RBS acknowledged that some customers experienced difficulties using its ATM network and chip and pin facilities. It added: “These issues have now been resolved. We apologise for the inconvenience caused to those customers affected.”

The incident was the latest in a series of glitches to hit the bank. In July, customers were locked out of their online bank accounts for nearly an hour , which RBS later blamed on a cyber-attack. A month earlier many customers were left without funds over a weekend after 600,000 transactions were delayed for several days.